US3623658A - Apparatus for controlling the discharge of separated material in centrifugal drums of centrifugal separators - Google Patents

Apparatus for controlling the discharge of separated material in centrifugal drums of centrifugal separators Download PDF

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Publication number
US3623658A
US3623658A US825342A US3623658DA US3623658A US 3623658 A US3623658 A US 3623658A US 825342 A US825342 A US 825342A US 3623658D A US3623658D A US 3623658DA US 3623658 A US3623658 A US 3623658A
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responsive
centrifugal
components
separated
outlets
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Expired - Lifetime
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US825342A
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English (en)
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Rudolf F Garbaty
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B13/00—Control arrangements specially designed for centrifuges; Programme control of centrifuges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B11/00—Feeding, charging, or discharging bowls
    • B04B11/02—Continuous feeding or discharging; Control arrangements therefor

Definitions

  • the present invention relates to centrifugal separators, more particularly of the drum type in which separate outlets are provided for the components of liquid mixtures that are separated by centrifugal force according to their different specific gravities upon rotation of the drum.
  • Another object of the present invention is the provision of apparatus for controlling the discharge of separated material in centrifugal drums of centrifugal separators, which is automatically responsive to changes in proportion of the separated components relative to each other so as to maintain the integrity of the separately discharged components.
  • FIG. 1 is a view taken on the line I-l of FIG. 2, showing structure for discharging separated material from centrifugal drums of centrifugal separators according to the prior art;
  • FIG. 2 is a cross-sectional view taken on the line 2-2 of FIG. I;
  • FIG. 3 is a first embodiment of apparatus according to the present invention, taken on the line 3-3 of FIG. 4;
  • FIG. 4 is a view taken on the line 4-4 of FIG. 3;
  • FIG. 5 is a view similar to FIG. 1 but taken on the line 5-5 of FIG. 6 and showing another embodiment of apparatus according to the present invention
  • FIG. 6 is a view taken on the line 6-6 of FIG. 5;
  • FIG. 7 and 8 are views similar to FIGS. 5 and 6, respectively, but showing another embodiment of apparatus according to the present invention.
  • FIGS. 9 and 10 are views similar to FIGS. 7 and 8, respectively, but showing still another embodiment of the present invention.
  • FIG. 11 is a fragmentary bottom plan view of a portion of FIG. 10;
  • FIGS. 12 and 13 are views similar to FIGS. 3 and 4, but showing still another embodiment of the invention.
  • FIGS. l4, l5 and 16 are top plan and cross-sectional views of a portion of the structure of the embodiment of FIGS. 12 and 13,
  • FIGS. I5 and 16 being taken on the lines 15-15 and I6- 16, respectively, of FIG. 14;
  • FIG. 17 is an elevational view of a float element for use in the embodiment of FIGS. 12-16;
  • FIG. 18 is a view taken on the line 18-18 of FIG. 19;
  • FIG. 19 is a view taken on the line 19-19 of FIG. 18;
  • FIG. 20 is a perspective view of a float element for use in the embodiment of FIGS. 18 and 19;
  • FIG. 21 is a view similar to FIG. 18 but showing still another embodiment of the invention.
  • FIG. 22 is a cross-sectional view taken on the line 22-22 of FIG. 21.
  • FIG. 23 is a perspective view of the float element of the em bodiment of FIGS. 21 and 22.
  • FIGS. I and 2 there is shown a centrifugal drum for a centrifugal separator, having a closing cover I having on its underside a circular recess 2 from which extends the discharge conduit 3 for the lighter liquid and that terminates in an outlet 4, the lighter liquid having entered the conduit 3 through opening 5.
  • a discharge conduit 6 for the heavier liquid terminates in an outlet 7 and receives heavier liquid from the opening 8 which is substantially radially farther outward than the opening 5;
  • the outlets 4 and 7 lie on a common circular line 9, and hence are equal radial distances from the axis of rotation.
  • the drum is completed by a cylindrical wall 10 and contains a centrally disposed feed pipe 11.
  • a separating bottom 12 is traversed by openings 13 and 14 and divides the interior of the drum into a separating chamber 15 containing the separated materials, and a further chamber I6.
  • the broken line 17 illustrates one position of the boundary surface between the separated components, there being a zone of mixed material whose boundaries are indicated at 18.
  • the interface between the separated components is indicated at 19, with the boundaries of the zone of mixture indicated at 20.
  • the proportions of the mixture fluctuate so that the lines 17 or 19 are more drastically displaced from their illustrated positions, then an unintended component will be discharged through the outlet 4 or 7.
  • FIGS. 3 and 4 A first embodiment of apparatus according to the present invention is shown in FIGS. 3 and 4.
  • the centrifugal force exerted by the material on the container wall varies as the density of the total mixture. Thus, when there is an increased proportion of heavier material, the centrifugal force is greater; but when there is an increased proportion of lighter material, then the centrifugal force is less.
  • a control disc 21 rotatably mounted on the underside of the cover and having setting slots 22 which are adapted selectively to position the flow grooves 23 of the disc into register with the corresponding discharge openings 5 and 8 for separated materials.
  • the discharge outlets for separated material are closed, throttled or opened.
  • Apparatus for rotating the disc 21 according to the proportion of the components relative to each other is provided in the form of a corrugated sleeve diaphragm 40 which is a pressure-responsive element.
  • Sleeve 40 is closed at one end by a pressure plate 41 that carries a pressure pin 42 that transmits the movements of plate 41 to a pivotally mounted lever 43 that carries at its outer end a pin 44 that enters and slides in the slot 22.
  • Lever 43 is pivotally mounted to the cover at 45 and carries a weight adjustable lengthwise of the lever to balance the centrifugal force of the arm.
  • disc 21 is circular so as to avoid changes in its centrifugal force.
  • FIGS. 3 and 4 operates by variation of centrifugal force, directly mechanically to regulate the discharge of the components. Instead, the transmission can be performed electrically.
  • FIGS. 5 and 6 there is shown an electrical device according to the present invention, in which the variation of centrifugal pressure moves the plate 41 inwardly until the pin 42' which is carried thereby reaches electrical contacts 47.
  • a pair of casings 48 and 49 are mounted on the outer side of the cover for housing electrical apparatus that is interconnected between the two casings by means of an electrical conduit 50.
  • Batteries 51 and servomotors 52 are housed in the casings.
  • the servomotor 52 rotates a shaft 54 through gearing 55, 56 to rotate the disc 21 when one or more of the contacts 47 is closed.
  • FIGS. 7 and 8 show another embodiment of apparatus for rotating the disc 2], in which the magnets 57, 570 are selectively actuable to swing the lever 58 in one direction or the other, thereby directly to turn the disc 21.
  • the disc 21 is replaced by a slide member 24 actuated by a rocking lever 59 whose upper end is selectively attracted to one of the magnets 57 and 5711, thereby to open or close or throttle the openings 5 and 8.
  • FIGS. 12-17 is shown another embodiment of the present invention, in which the position of a float directly mechanically opens or closes or throttles the outlet openings.
  • the float functions much like a hydrometer, whose position is constant with respect to the interface no matter where the interface is located, as the specific density of the float is intermediate the specific densities of the liquid components.
  • the float is thus at equilibrium with respect to the interface not only when the liquids are stationary, but also when they are rotating rapidly, so that there is no tendency for such a float to wander from the interface despite variations in the speed of rotation of the drum.
  • a float 25 is employed as g the setting member whose position varies as the position of the interface between the separated components.
  • Float 25 has axial stubs 26 thereon that joint the main float body in inclined sealing shoulders 27.
  • Float 25 is thus axially reciprocable in guide members 32, 33 (FIGS. 14-16) the radially inner guide member 32 providing an outlet for the lighter component and the radially outer guide member 33 providing an outlet for the heavier component.
  • each of the members 32 and 33 which are mounted on the underside of the cover, has intake openings 34 that communicate with channels 35 with a seat 36 that provides a sliding support for one of the stubs 26.
  • a channel 37 communicates through an outlet 38 with the respective outlet opening 5 or 8 in the underside of the cover.
  • the disc 21 is again provided, which is turned by the position of a float 25 that has an axial bore 28 therethrough and which carries a radially extending pin 29 that projects outwardly from its upper surface as seen in FIGS. 18 and 20.
  • a radially extending shaft 31, fixed to the cover, provides a mounting on which float 25' slides radially with changes in the position of the interface between the liquids.
  • the pin 29 registers in a slot 22' in disc 21 thereby to turn the disc 21 upon changes in the position of the interface.
  • the float itself serves as the regulatory valve, as also in FIGS. 12 and 13.
  • a float 25" is mounted and moves as in FIGS. 18 and 19, but has a flat upper surface 30 which directly slides over the openings 5 and 8 to open or close or throttle them according to the position of the interface with which float 25 "moves.
  • Apparatus for controlling the discharge of separated liquids from centrifugal separators comprising a centrifugal drum having radially spaced outlets for separated liquid components, valve means for controlling the flow of separated components through both of said outlets, and means responsive to a change in proportion of the components relative to each other to actuate said valve means.
  • said responsive means comprising means responsive to a change in the centrifugal force exerted by the components.
  • said responsive means comprising means defining a chamber having a sidewall whose position varies with variations in the centrifugal force exerted by the components, and means responsive to changes in position of said sidewall to actuate said valve means.
  • said means responsive to changes in position of said sidewall comprising a lever system interconnected with said valve means.
  • said means responsive to changes in position of said sidewall comprising electrical switch means for controlling said valve means.
  • said responsive means comprising means responsive to the position of the interface between the separated components.
  • said responsive means comprising a series of radially spaced electrical contacts to be bridged by an electrically conductive separated component.
  • said responsive means comprising a float whose position varies with the position of the interface between the separated components.
  • valve means being common to both of said radially spaced outlets and being movable in one direction to open one of said outlets and to close the other of said outlets, and being movable in another direction to close said one outlet and to open said other outlet.

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  • Centrifugal Separators (AREA)
US825342A 1968-05-17 1969-05-16 Apparatus for controlling the discharge of separated material in centrifugal drums of centrifugal separators Expired - Lifetime US3623658A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1757532A DE1757532C3 (de) 1968-05-17 1968-05-17 Auslaufregler für einen Zentrifugalseparator

Publications (1)

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US3623658A true US3623658A (en) 1971-11-30

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US825342A Expired - Lifetime US3623658A (en) 1968-05-17 1969-05-16 Apparatus for controlling the discharge of separated material in centrifugal drums of centrifugal separators

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US (1) US3623658A (enrdf_load_stackoverflow)
JP (1) JPS498989B1 (enrdf_load_stackoverflow)
CH (1) CH507743A (enrdf_load_stackoverflow)
DE (1) DE1757532C3 (enrdf_load_stackoverflow)
FR (1) FR2008778A1 (enrdf_load_stackoverflow)
GB (1) GB1257110A (enrdf_load_stackoverflow)
NL (1) NL6907559A (enrdf_load_stackoverflow)
SE (1) SE354201B (enrdf_load_stackoverflow)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3734401A (en) * 1970-07-29 1973-05-22 D Frewen Centrifugal separator
US3784092A (en) * 1971-04-27 1974-01-08 Glacier Metal Co Ltd Centrifugal separator
US3908893A (en) * 1973-04-16 1975-09-30 Melvin Williams Automatic serum preparation station
US4120448A (en) * 1977-06-08 1978-10-17 Baxter Travenol Laboratories, Inc. Centrifugal liquid processing apparatus with automatically positioned collection port
US4402680A (en) * 1981-07-09 1983-09-06 Haemonetics Corporation Apparatus and method for separating fluid into components thereof
US5032258A (en) * 1988-05-19 1991-07-16 Krauss-Maffei Aktiengesellschaft Filter centrifuge for separating suspensions with system to release accumulated gas
US5257968A (en) * 1991-06-06 1993-11-02 Alfa Laval Separation Inc. Inflatable dam for a decanter centrifuge
WO2001010562A1 (en) * 1999-08-06 2001-02-15 Separation Process Technology, Inc. Centrifugal pressurized separators and methods of controlling same
US6607473B2 (en) 1999-08-06 2003-08-19 Econova Inc. Methods for centrifugally separating mixed components of a fluid stream under a pressure differential
US6719681B2 (en) 1999-08-06 2004-04-13 Econova, Inc. Methods for centrifugally separating mixed components of a fluid stream
US20100059426A1 (en) * 2006-10-27 2010-03-11 Weihai Dengtong Purification Equipment Co., Ltd. Liquid-liquid separation device
EP2902112A1 (de) * 2014-01-31 2015-08-05 Flottweg SE Auslassvorrichtung einer Vollmantelschneckenzentrifuge
CN107952594A (zh) * 2017-11-21 2018-04-24 海南出入境检验检疫局检验检疫技术中心 一种用于食品检测的离心机溢流调节机构
CN111439808A (zh) * 2020-03-28 2020-07-24 蒋利荣 一种高油污含量的生活污水处理排放装置

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE427248B (sv) * 1979-01-19 1983-03-21 Alfa Laval Ab Centrifugalseparator med automatisk flodeskontroll i utloppet for fastfasfraktion
US4846780A (en) * 1988-08-10 1989-07-11 Exxon Production Research Company Centrifuge processor and liquid level control system
DE3911320A1 (de) * 1989-04-07 1990-10-11 Kloeckner Humboldt Deutz Ag Zentrifuge zum kontinuierlichen trennen von stoffen unterschiedlicher dichte
DE102004037414A1 (de) * 2004-07-30 2006-03-23 Mann + Hummel Gmbh Zentrifugalabscheider
ITAN20120088A1 (it) * 2012-07-12 2014-01-13 Pieralisi Maip Societa Per Azioni Separatore centrifugo o decanter provvisto di sistema di chiusura perfezionato.
DE102012213877A1 (de) * 2012-08-06 2014-02-06 Hengst Gmbh & Co. Kg Freistrahlzentrifuge mit einem Rotor mit wenigstens einer Rückstoßdüse
CN113713663B (zh) * 2021-05-31 2024-03-29 黑龙江省林业科学院伊春分院 一种刺五加软胶囊制造用药液配制装置及方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR736811A (fr) * 1931-05-13 1932-11-29 Installation à commande automatique pour le réglage du remplissage des machines centrifuges
US2067273A (en) * 1931-12-18 1937-01-12 Knowles Joseph Russell Centrifugal separator
US2883102A (en) * 1958-06-20 1959-04-21 Jensen Leo Einar Jorgen Centrifugal separator
DE1144198B (de) * 1961-08-09 1963-02-21 Krauss Maffei Ag Vorrichtung zum Steuern der Arbeitsablaeufe von Zentrifugen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR736811A (fr) * 1931-05-13 1932-11-29 Installation à commande automatique pour le réglage du remplissage des machines centrifuges
US2067273A (en) * 1931-12-18 1937-01-12 Knowles Joseph Russell Centrifugal separator
US2883102A (en) * 1958-06-20 1959-04-21 Jensen Leo Einar Jorgen Centrifugal separator
DE1144198B (de) * 1961-08-09 1963-02-21 Krauss Maffei Ag Vorrichtung zum Steuern der Arbeitsablaeufe von Zentrifugen

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3734401A (en) * 1970-07-29 1973-05-22 D Frewen Centrifugal separator
US3784092A (en) * 1971-04-27 1974-01-08 Glacier Metal Co Ltd Centrifugal separator
US3908893A (en) * 1973-04-16 1975-09-30 Melvin Williams Automatic serum preparation station
US4120448A (en) * 1977-06-08 1978-10-17 Baxter Travenol Laboratories, Inc. Centrifugal liquid processing apparatus with automatically positioned collection port
US4402680A (en) * 1981-07-09 1983-09-06 Haemonetics Corporation Apparatus and method for separating fluid into components thereof
US5032258A (en) * 1988-05-19 1991-07-16 Krauss-Maffei Aktiengesellschaft Filter centrifuge for separating suspensions with system to release accumulated gas
US5257968A (en) * 1991-06-06 1993-11-02 Alfa Laval Separation Inc. Inflatable dam for a decanter centrifuge
US6719681B2 (en) 1999-08-06 2004-04-13 Econova, Inc. Methods for centrifugally separating mixed components of a fluid stream
CN1569302B (zh) * 1999-08-06 2011-06-29 伊科诺瓦有限公司 离心分离混合物的方法及离心分离器
US6607473B2 (en) 1999-08-06 2003-08-19 Econova Inc. Methods for centrifugally separating mixed components of a fluid stream under a pressure differential
WO2001010562A1 (en) * 1999-08-06 2001-02-15 Separation Process Technology, Inc. Centrifugal pressurized separators and methods of controlling same
US20040192533A1 (en) * 1999-08-06 2004-09-30 Econova, Inc. Centrifugal separators
US7060017B2 (en) 1999-08-06 2006-06-13 Econova, Inc. Centrifugal separators
US7314441B2 (en) 1999-08-06 2008-01-01 Econova, Inc. Method for separating particulate matter from a fluid stream
US6346069B1 (en) 1999-08-06 2002-02-12 Separation Process Technology, Inc. Centrifugal pressurized separators and methods of controlling same
US20100059426A1 (en) * 2006-10-27 2010-03-11 Weihai Dengtong Purification Equipment Co., Ltd. Liquid-liquid separation device
US8231515B2 (en) * 2006-10-27 2012-07-31 Weihai Dengtong Purification Equipment Co., Ltd. Liquid-liquid separation device
EP2902112A1 (de) * 2014-01-31 2015-08-05 Flottweg SE Auslassvorrichtung einer Vollmantelschneckenzentrifuge
US20150217303A1 (en) * 2014-01-31 2015-08-06 Flottweg Se Outlet device of a solid-bowl screw centrifuge
US10293347B2 (en) * 2014-01-31 2019-05-21 Flottweg Se Solid-bowl screw centrifuge with an outlet device having a restrictor controlled by a floating body that floats on a liquid level of the material being separated in the centrifuge to automatically adjust the outlet in dependence on a throughput of the material
CN107952594A (zh) * 2017-11-21 2018-04-24 海南出入境检验检疫局检验检疫技术中心 一种用于食品检测的离心机溢流调节机构
CN111439808A (zh) * 2020-03-28 2020-07-24 蒋利荣 一种高油污含量的生活污水处理排放装置
CN111439808B (zh) * 2020-03-28 2021-05-18 江西绿色盾牌环境工程有限公司 一种高油污含量的生活污水处理排放装置

Also Published As

Publication number Publication date
SE354201B (enrdf_load_stackoverflow) 1973-03-05
GB1257110A (enrdf_load_stackoverflow) 1971-12-15
CH507743A (de) 1971-05-31
DE1757532B2 (de) 1978-12-21
FR2008778A1 (enrdf_load_stackoverflow) 1970-01-23
JPS498989B1 (enrdf_load_stackoverflow) 1974-03-01
NL6907559A (enrdf_load_stackoverflow) 1969-11-19
DE1757532C3 (de) 1979-08-23
DE1757532A1 (de) 1971-04-22

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